Three RCTs showed that rubber band ligation was better than injection sclerotherapy in a variety of outcomes (pain, repeat treatment, prolapse, bleeding) in persons with mainly second-degree hemorrhoids; however, rubber band ligation was associated with more immediate adverse effects.
Edema is the medical term for swelling. Body parts swell from injury or inflammation. It can affect a small area or the entire body. Medications, infections, pregnancy, and many other medical problems can cause edema. Edema happens when your small blood vessels become leaky and release fluid into nearby tissues.
cellular edema edema caused by the entry of water into the cells, causing them to swell. This may occur because of decreased osmolality of the fluid surrounding the cells, as in hypotonic fluid overload, or increased osmolality of the intracellular fluid, as in conditions that decrease the activity of the sodium pump of the cell membrane, allowing the concentration of sodium ions within the cell to increase.